If A means 'added to', B means 'multiplied by', C means 'subtracted from' and D means 'divided by', then evaluate the expression: 23 A 12 D 4 B 5 C 40

If 'A' stands for '÷', 'B' stands for '×', 'C' stands for '+' and 'D' stands for '-', then what will come in place of the question mark (?) in the following equation? 37 C 32 A 2 D 9 B 2 = ?

If 'A' means '÷', 'B' means '×', 'C' means '+' and 'D' means '-', then what will come in place of the question mark (?) in the following equation? 5 B 2 D 12 A 6 C 2 = ?